[Amps] T-T Titan 425 Q's

[Carl]

I havent seen or heard of any failed caps in amps that new Bob.

Ones in the mid to late 80's are due for a common sense PM and earlier ones 
are living on borrowed time. The 1986 LK-500ZC here had one cap a slight bit 
warm during a recent test so they all got changed. Other than some fixed 
load cap juggling to work with my 160/80M antennas everything else is 
original and the old Eimacs still crank out 1200W with 80W of drive.

Carl
KM1H



----- Original Message ----- 
From: "Bob Arenella" <rja12 at comcast.net>
To: <amps at contesting.com>
Sent: Thursday, December 02, 2010 12:57 PM
Subject: [Amps] T-T Titan 425 Q's


> Amp newbie here. I recently came into a Titan 425 as part of a larger
> purchase. I kept a few items, sold off the rest, and have less than $200
> invested in the amp, a MFJ 259 analyzer and an Astron 50 A supply. The 
> owner
> told me the amp was only putting out about 50% of legal limit. I figured,
> still a good deal, even if the PA's are soft. Turns out, the amp puts out
> well in excess of the legal limit :<).
>
> The only issue I see is that the fan doesn't run at low speed. Either the
> switch or the buck winding on the xfmr, I guess. Don't see anything 
> zorched
> in the RF deck or PS. T-T tells me this amp was built in 1994, and the 
> date
> codes on the 3CX800A7's confirm this.
>
> I would like to know if there are any "must do" mods or upgrades for this
> amp? T-T tells me that the padder cap problem was in the very early 
> versions
> of this amp, and shouldn't be a concern. How 'bout the going on 17 year 
> old
> filter caps?
>
> Thanks for your opinions!
>
> 73 de bob
> n2oam
>
>
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